A growing number of Late 2013 Retina MacBook Pro owners in Apple Support Communities forum threads are reporting various problems with both the 13 and 15-inch models of the laptop

From MacRumors:

According to users in a support thread spanning over 14 pages, the trackpad and the keyboard on the 13-inch Retina MacBook Pro are reportedly locking up at random during use, with a hard reset through the machine's power button appearing to be the only present solution to the problem. Users are also reporting that a reset of the MacBook's System Management Controller (SMC) also appears to be ineffective, and a small survey of users within the thread show that the problem is affecting all three configurations of the 13-inch model. Currently, it is unknown as to whether the freezes are a hardware or software problem, as Apple has not officially commented on the errors.